aleajactaest/khanat-opennel-code
1
0
Fork 0
mirror of https://port.numenaute.org/aleajactaest/khanat-opennel-code.git synced 2024-09-29 13:28:35 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions

Implement volatile vertex buffer for opengl driver, should provide considerable performance improvements for particle systems. Needs additional testing.

Browse source
This commit is contained in:
kaetemi 2014-06-04 18:59:54 +02:00
parent 30072a64c9
commit 35b01fc3a9
4 changed files with 70 additions and 17 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

20
code/nel/src/3d/driver/opengl/driver_opengl_extension.cpp
View file

@ -372,6 +372,10 @@ PFNGLUNMAPBUFFERARBPROC nglUnmapBufferARB;
PFNGLGETBUFFERPARAMETERIVARBPROC nglGetBufferParameterivARB;
PFNGLGETBUFFERPOINTERVARBPROC nglGetBufferPointervARB;
// GL_ARB_map_buffer_range
PFNGLMAPBUFFERRANGEPROC nglMapBufferRange;
PFNGLFLUSHMAPPEDBUFFERRANGEPROC nglFlushMappedBufferRange;
// GL_ARB_vertex_program
PFNGLVERTEXATTRIB1SARBPROC nglVertexAttrib1sARB;
PFNGLVERTEXATTRIB1FARBPROC nglVertexAttrib1fARB;
@ -1259,6 +1263,21 @@ static bool setupARBVertexBufferObject(const char *glext)
return true;
}
// ***************************************************************************
static bool setupARBMapBufferRange(const char *glext)
{
H_AUTO_OGL(setupARBMapBufferRange);
#ifndef USE_OPENGLES
CHECK_EXT("GL_ARB_map_buffer_range");
CHECK_ADDRESS(PFNGLMAPBUFFERRANGEPROC, glMapBufferRange);
CHECK_ADDRESS(PFNGLFLUSHMAPPEDBUFFERRANGEPROC, glFlushMappedBufferRange);
#endif
return true;
}
// ***************************************************************************
static bool setupARBVertexProgram(const char *glext)
{
@ -1695,6 +1714,7 @@ void registerGlExtensions(CGlExtensions &ext)
if(!ext.DisableHardwareVertexArrayAGP)
{
ext.ARBVertexBufferObject = setupARBVertexBufferObject(glext);
ext.ARBMapBufferRange = setupARBMapBufferRange(glext);
}
// fix for radeon 7200 -> disable agp

7
code/nel/src/3d/driver/opengl/driver_opengl_extension.h
View file

@ -99,6 +99,7 @@ struct CGlExtensions
bool ARBTextureCompression;
bool ARBFragmentProgram;
bool ARBVertexBufferObject;
bool ARBMapBufferRange;
bool ARBVertexProgram;
bool ARBTextureNonPowerOfTwo;
bool ARBMultisample;
@ -262,6 +263,7 @@ public:
result += ATIVertexArrayObject ? "ATIVertexArrayObject " : "";
result += ATIVertexAttribArrayObject ? "ATIVertexAttribArrayObject " : "";
result += ARBVertexBufferObject ? "ARBVertexBufferObject " : "";
result += ARBMapBufferRange ? "ARBMapBufferRange " : "";
result += ATIMapObjectBuffer ? "ATIMapObjectBuffer " : "";
result += "\n FBO: ";
@ -654,7 +656,10 @@ extern PFNGLUNMAPBUFFERARBPROC nglUnmapBufferARB;
extern PFNGLGETBUFFERPARAMETERIVARBPROC nglGetBufferParameterivARB;
extern PFNGLGETBUFFERPOINTERVARBPROC nglGetBufferPointervARB;
// GL_ARB_map_buffer_range
//==================================
extern PFNGLMAPBUFFERRANGEPROC nglMapBufferRange;
extern PFNGLFLUSHMAPPEDBUFFERRANGEPROC nglFlushMappedBufferRange;
// GL_ARB_vertex_program
//==================================

15
code/nel/src/3d/driver/opengl/driver_opengl_vertex.cpp
View file

@ -147,9 +147,9 @@ bool CDriverGL::setupVertexBuffer(CVertexBuffer& VB)
CVBDrvInfosGL *info = new CVBDrvInfosGL(this, it, &VB);
*it= VB.DrvInfos = info;
// Preferred memory
// Preferred memory, AGPVolatile only goes through when ARBMapBufferRange is available
CVertexBuffer::TPreferredMemory preferred = VB.getPreferredMemory ();
if ((preferred == CVertexBuffer::RAMVolatile) || (preferred == CVertexBuffer::AGPVolatile))
if ((preferred == CVertexBuffer::RAMVolatile) || (preferred == CVertexBuffer::AGPVolatile && !_Extensions.ARBMapBufferRange))
preferred = CVertexBuffer::RAMPreferred;
const uint size = VB.capacity()*VB.getVertexSize();
uint preferredMemory = _Extensions.DisableHardwareVertexArrayAGP ? CVertexBuffer::RAMPreferred : preferred;
@ -159,6 +159,12 @@ bool CDriverGL::setupVertexBuffer(CVertexBuffer& VB)
info->_VBHard = createVertexBufferHard(size, VB.capacity(), (CVertexBuffer::TPreferredMemory)preferredMemory, &VB);
if (info->_VBHard)
break;
if ((CVertexBuffer::TPreferredMemory)preferredMemory == CVertexBuffer::AGPVolatile)
{
preferredMemory = CVertexBuffer::RAMPreferred;
break;
}
preferredMemory--;
}
@ -170,7 +176,7 @@ bool CDriverGL::setupVertexBuffer(CVertexBuffer& VB)
}
// Upload the data
VB.setLocation ((CVertexBuffer::TLocation)preferredMemory);
VB.setLocation(preferredMemory == CVertexBuffer::AGPVolatile ? CVertexBuffer::AGPResident : (CVertexBuffer::TLocation)preferredMemory);
}
}
@ -740,7 +746,7 @@ bool CDriverGL::supportVertexBufferHard() const
bool CDriverGL::supportVolatileVertexBuffer() const
{
H_AUTO_OGL(CDriverGL_supportVolatileVertexBuffer)
return false;
return _Extensions.ARBMapBufferRange;
}
@ -769,6 +775,7 @@ IVertexBufferHardGL *CDriverGL::createVertexBufferHard(uint size, uint numVertic
IVertexArrayRange *vertexArrayRange= NULL;
switch(vbType)
{
case CVertexBuffer::AGPVolatile:
case CVertexBuffer::AGPPreferred:
vertexArrayRange= _AGPVertexArrayRange;
break;

45
code/nel/src/3d/driver/opengl/driver_opengl_vertex_buffer_hard.cpp
View file

@ -1174,6 +1174,9 @@ bool CVertexArrayRangeARB::allocate(uint32 size, CVertexBuffer::TPreferredMemory
switch(vbType)
{
case CVertexBuffer::AGPVolatile:
glBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_STREAM_DRAW_ARB);
break;
case CVertexBuffer::AGPPreferred:
glBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
break;
@ -1221,13 +1224,14 @@ IVertexBufferHardGL *CVertexArrayRangeARB::createVBHardGL(uint size, CVertexBuff
if (glGetError() != GL_NO_ERROR) return NULL;
_Driver->_DriverGLStates.forceBindARBVertexBuffer(vertexBufferID);
switch(_VBType)
CVertexBuffer::TPreferredMemory preferred = vb->getPreferredMemory();
switch (preferred)
{
case CVertexBuffer::AGPPreferred:
case CVertexBuffer::AGPVolatile:
#ifdef USE_OPENGLES
glBufferData(GL_ARRAY_BUFFER, size, NULL, GL_DYNAMIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, size, NULL, GL_STREAM_DRAW);
#else
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_STREAM_DRAW_ARB);
#endif
break;
case CVertexBuffer::StaticPreferred:
@ -1244,8 +1248,13 @@ IVertexBufferHardGL *CVertexArrayRangeARB::createVBHardGL(uint size, CVertexBuff
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
#endif
break;
// case CVertexBuffer::AGPPreferred:
default:
nlassert(0);
#ifdef USE_OPENGLES
glBufferData(GL_ARRAY_BUFFER, size, NULL, GL_DYNAMIC_DRAW);
#else
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
#endif
break;
}
if (glGetError() != GL_NO_ERROR)
@ -1259,7 +1268,7 @@ IVertexBufferHardGL *CVertexArrayRangeARB::createVBHardGL(uint size, CVertexBuff
return NULL;
}
CVertexBufferHardARB *newVbHard= new CVertexBufferHardARB(_Driver, vb);
newVbHard->initGL(vertexBufferID, this, _VBType);
newVbHard->initGL(vertexBufferID, this, preferred);
_Driver->_DriverGLStates.forceBindARBVertexBuffer(0);
return newVbHard;
}
@ -1393,6 +1402,7 @@ void *CVertexBufferHardARB::lock()
H_AUTO_OGL(CVertexBufferHardARB_lock);
if (_VertexPtr) return _VertexPtr; // already locked
const uint size = VB->getNumVertices() * VB->getVertexSize();
if (_Invalid)
{
if (VB->getLocation() != CVertexBuffer::NotResident)
@ -1414,15 +1424,14 @@ void *CVertexBufferHardARB::lock()
_Driver->incrementResetCounter();
return &_DummyVB[0];
}
const uint size = VB->getNumVertices() * VB->getVertexSize();
_Driver->_DriverGLStates.forceBindARBVertexBuffer(vertexBufferID);
switch(_MemType)
{
case CVertexBuffer::AGPPreferred:
case CVertexBuffer::AGPVolatile:
#ifdef USE_OPENGLES
glBufferData(GL_ARRAY_BUFFER, size, NULL, GL_DYNAMIC_DRAW);
glBufferData(GL_ARRAY_BUFFER, size, NULL, GL_STREAM_DRAW);
#else
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_STREAM_DRAW_ARB);
#endif
break;
case CVertexBuffer::StaticPreferred:
@ -1439,8 +1448,13 @@ void *CVertexBufferHardARB::lock()
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
#endif
break;
// case CVertexBuffer::AGPPreferred:
default:
nlassert(0);
#ifdef USE_OPENGLES
glBufferData(GL_ARRAY_BUFFER, size, NULL, GL_DYNAMIC_DRAW);
#else
nglBufferDataARB(GL_ARRAY_BUFFER_ARB, size, NULL, GL_DYNAMIC_DRAW_ARB);
#endif
break;
}
if (glGetError() != GL_NO_ERROR)
@ -1499,7 +1513,14 @@ void *CVertexBufferHardARB::lock()
_LastBufferSize = size;
}
#else
_VertexPtr = nglMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
if (_MemType == CVertexBuffer::AGPVolatile)
{
_VertexPtr = nglMapBufferRange(GL_ARRAY_BUFFER, 0, size, GL_MAP_WRITE_BIT | GL_MAP_INVALIDATE_BUFFER_BIT);
}
else
{
_VertexPtr = nglMapBufferARB(GL_ARRAY_BUFFER_ARB, GL_WRITE_ONLY_ARB);
}
if (!_VertexPtr)
{
nglUnmapBufferARB(GL_ARRAY_BUFFER_ARB);